Hydroplane-boat.



w. H. FOLK. HYDROPLANE BOAT.

APPLICATION FILED SEPT. 27, 1909.

Patented Aug.2, 1910.

2 SHEETS-SHEET 1,

W. H. FOLK.

HYDROPLANE BOAT. APPLICATION FILED SEPT. 27,1909.

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To all whom it may concern:

Be it known that I, VILLIAM H. FOLK, a citizen of the United States,residing at Suffolk, in the county of Nansemond and State of Virginia,have invented certain new and useful Improvements in Hydroplane-Boats;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being had`to the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to new and useful improvements in hydroplaneboats and the object in view is to produce an attachment to hulls ofboats whereby the boat may be steadied while in the water.

The invention comprises various details of construction, combinationsand arrangements of parts which will be hereinafter fully described andthen specifically defined in the appended claim.

I illustrate my invention in the accompanying drawings, in which Figurel is a side elevation of a boat showing a hydropla-ne attached thereto,parts of the boat being shown in section. Fig. 2 is a bottom plan viewof the boat. Fig. 3 is a top plan view. Fig. 4l is a rear end view, andFig. 5 is a forward end View.

Reference now being had to the details of the drawings by letter, Adesignates the hull of a boat which may be of any shape or size andfastened to the opposite sides of the boat are the brace arms B.

C, C designate hydroplanes which comprise channel members extendingnearly the length of the boat and parallel to each other. Said channelmembers are curved upwardly at C', shown clearly in Fig. l of thedrawings, and bars D connect and hold said members in the position shownin the drawings spaced apart with the outer marginal edge of each ofsaid channel members preferably flush with the outer marginal edge ofthe hull. Saidl brace arms B are fastened to said bars D and also to-thechan- Specicaton of Letters Patent.

Application filed September 27, 1909.

Patented Aug. 2, 1910. Serial No. 519,767.

nel members, thus securely holding the same in place. It will be notedthat the side walls K, K of the channel members C eX- tend downward asuitable distance into t-he water, thus serving to hold the boat true toher course and prevent the same from skidding or ricocheting sidewise.

Mounted in suitable bearings in the hull of the boat are the twopropeller shafts, designated respectively by letters E and F, disposedat any suitable angles and having propeller wheels H fixed to theirends. Pinion wheels O and Q are fastened one to each of said shafts andintermesh with each other, and R designates a motor whereby power may beapplied to one of the shafts and transmitted through the gearconnections to the other. It will be noted that the portions of thegrooved members forming the hydroplane are inclined upwardly, preferablyadjacent to the parts of the hull where the bow tapers forward.

By the provision of a boat having hydroplanes as shown and described,the inclined portions of the channel members will tend to raise the boatin the water as it is driven through the same, thus lightening the draftof the boat and steadying the same as it is driven through the water.

What I claim to be new is In combination with the hull of a boat,

braces projecting from the sides thereof, channel members fastenedparallel to each other and secured to said braces, said members havingtheir forward ends upwardly curved and portions thereof rearward of thecurved parts inclining upwardly toward the stern of the hull, theopposite ends of said channel members spaced laterally from the sides ofthe bow and stern of the hull, bars connecting the rear ends of thechannel members, and propeller shaft bearings connected to said bars.

In testimony whereof I hereunto aiiixed my signature in the presence oftwo witnesses.

WILLIAM HENRY FOLK. Witnesses:

E. L. FOLK, WM. H. HOWELL.

